Is this build worth it?

[Been In My Box]

http://pcpartpicker.com/p/FWD2TW

all the parts etc will they last ? I wont be doing hardcore like using it all the time but I do want top of the line stuff. I don't mind prices at all. I like to pay for stuff thats worth it.

What could I edit in this build to to make it either better bang for its buck and better for performance?

I want to play all games at ultra and I want to be able to not upgrade anything for a couple years or so.
I mainly will be playing old games like modding GTA IV etc...

 

[Spykezxp]

Surprised no one has responded to this yet.
Without knowing what games you might eventually get, its hard to build a computer that can play "ultra" setting. Games being released now are requiring better (if not top of the line - depending on the game) components.
If you were to use the existing setup that you have linked, I would suggest changing a couple things:
The RAM is rated at 1.6V and the motherboard is 1.5V. This is a small issue, but you should try to make sure that it is the same voltage. Makes for less "headaches" while trying to setup the computer. I would also suggest with the RAM - go 16GB (2x8GB) instead of 8GB (2x4GB). 8GB is the norm for gaming now, but who knows in the future. Better to get it now and out of the way, if you can afford it.
I would suggest getting a 800W (or higher) Power Supply instead of the 600W you have listed. This way "if" you do decide to get a different (or add a second) video card, you will have plenty of power to supply to it.
Last thing is you did not include a case to house all of these parts. I would suggest something that has "breathing" room. Get a case that you can add in a couple case fans to create proper air circulation and help eliminate heat buildup.
This is all just my opinion though, so take it as you want. But if you really want to "future proof" as much as possible, my suggestions would help a good deal with doing so.
Let us know what you end up deciding and ultimately come out with when (and if) you build this computer.